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Taxonomic evaluations on the anatomical characters of leaf and achene in Turkish Tripleurospermum with its relative Matricaria (Asteraceae)
Flora ( IF 1.7 ) Pub Date : 2020-12-24 , DOI: 10.1016/j.flora.2020.151759
Huseyin Inceer , Melahat Ozcan

Tripleurospermum is a typically Mediterranean genus with ca. 40 species. It is widespread and diverse in Turkey with ca. 32 taxa, of which 12 are provided anatomical traits of both leaf and achene/cypsela, previously. In addition, the leaf anatomy of endemic T. baytopianum as well as the achene anatomy of endemic T. rosellum var. album with diploid cytotype are presented from Turkey. In this study, the anatomy of both leaf and achene of 15 taxa as well as achene anatomy of T. baytopianum and T. rosellum var. album with tetraploid cytotype were described in detail from Turkey. The leaf and achene anatomical characteristics of Turkish Tripleurospermum and its closely related genus Matricaria using multivariate analyses (cluster analysis, principal components analysis) were evaluated in taxonomic context. Additional data of further species of Tripleurospermum as well as Matricaria (four taxa) were taken from the literature for multivariate analyses. All studied taxa have the basic leaf structure with lower and upper epidermis including anomocytic stomata, parenchymatic mesophyll, and vascular bundle. The pericarp is composed of several layers of parenchymatous and sclerenchymatous cells with one vascular bundle in each rib. The thickness of palisade sclerenchyma in the pericarp, the vascular bundle length in the midrib of the leaf, and presence or absence of a slime envelope have high taxonomic value at interspecific/intergeneric levels.



中文翻译:

分类学评价土耳其Tripleurospermum及其相对菊科(菊科)的叶片和瘦果的解剖特征

Tripleurospermum是典型的地中海属,约有。40种。它在土耳其广泛传播,种类繁多。以前有32个分类单元,其中12个提供了叶片和瘦果/ Cypsela的解剖特征。此外,特有T. baytopianum的叶片解剖以及特有玫瑰T. rosellum var的瘦果解剖。来自土耳其的具有二倍体细胞型的专辑。在这项研究中,对15个分类单元的叶和瘦果两者的解剖以及T. baytopianumT. rosellum var的瘦果解剖。土耳其详细介绍了具有四倍体细胞型的相册。土耳其Tripleurospermum的叶片和瘦果解剖特征在分类学背景下,使用多变量分析(聚类分析,主成分分析)评估了其近亲属母本属。的进一步物种的附加数据三肋果属以及母菊(四个分类单元)摘自文献进行多元分析。所有研究的分类单元都具有基本的叶结构,包括较低的表皮和较高的表皮,包括无气孔气孔,实质性叶肉和维管束。果皮由几层薄壁组织和硬皮层细胞组成,每根肋骨有一个血管束。果皮间的栅栏巩膜厚度,叶片中脉中的维管束长度以及粘液膜的有无在种间/属间水平上具有很高的分类学价值。

更新日期:2021-01-04
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